Self-locking hanger



March 12, 1940.

B. H. SADLER IE: :IHh .14 lg BENJ/QM/A/ Patented Mar. 12, 1940 UNITEDSTATES PATENT OFFICE.

1 Claim.

This invention relates to an improved mounting for fire extinguishersand aims to provide safety means whereby-once a fire extinguisher hasbeen removed from its mounting it cannot again be placed thereon exceptby an authorized person.

The improved device includes a fire extinguisher supporting means whichautomatically moves to non-supporting position and is locked thereinupon removal of the fire extinguisher.

The above and more detailed features of the invention will be fullyapparent from the following specification, when read in connection withthe accompanying drawing, in which:

Figure 1'15 a .front elevation with portions broken away showing theimproved hanger supporting a fire "extinguisher in position to be used;

Figure2 is a side elevation thereof; and

Figures 3 and 4' are views similar to Figures 1 and 2 but showing theposition of the parts after removal of the fire extinguisher.

Referring in detail to the drawing, l0 represents a base plate havingguides 42 and M for slidably positioning a slide member it which isprovided at its lower extremity with a supporting 25 shelf or hook l8adapted to support a fire extinguisher, indicated at 20.

A spring 22 has one end secured-to a stud 24 carried by the slide 16 andits other end secured to a fixed anchorage pin 26 carried by the baseplate l0 and projecting through a slot 28 formed in the slide. A cover3|! encloses the slide and serves to prevent unauthorized personsfrom'gaining access to locking mechanism to be presently described. 35Enclosed by the cover 30 there is a locking mechanism which is efiectiveto prevent unauthorized persons from moving the supporting slide fromthe position of Figures 3 and 4 to that of Figures 1 and 2. The lockingmeans illustrated includes a latch dog 32 which is pivoted at 34 andnormally pressed toward the edge of the slide I6 by a springiifi. Thedog has anoutwardly bent lip 38 at its free end forcoaction with alocking notch 40 formed in the slide. Coincident with the pivotal axis34 and secured to the dog there is a sleeve-like member having recessedportions adapted to cooperate with a suitable key which may be insertedthrough a keyhole 38 formed in the casing.

While the drawing shows one known type of small fire extinguisherresting bodily on the shelf or hook it, it is clear that a muchlarger'extinguisher, generally known as the soda-acidtype, can be hungVertically therefrom by engaging the handle thereof with said hook 48.

With the apparatus described it will be apparent that when the fireextinguisher 28 is re moved from the supporting portion 28, the spring22 will retract the slide and thus move the sup-- porting portion I8 totheposition of Figure 4 wherein it is apparent that it is inaccessible.The slide will be locked in this position by the dog 32 and it cannot beagain moved to a position to receive a fire extinguisher until anauthorized person in possession of the key unlocks the dog and moves theslide to the position of Figures 9 1 and 2. I

While I have described quite specifically the embodiment of theinvention herein illustrated, it is to be understood that variousmodifications may be made by those skilled in theart without departure.from the invention, as defined in the appended claim.

ing a key engaging portion, said cover having an aperture alignedtherewith, said slide being a one-piece flat element with an angularlybent extremity to form said suppi rting portion, and said base platebeing a single fiat member and having integral guides bent intooverlapping relationwith'said slide. l

BENJAMIN H. SADLER.

